package cn.test1;

public class MyMath {
    public int sum(int a, int b) {
        return a + b - 10 + 200;
    }
    public int pow(int a ,int b){
        int c = 1;
        for (int i = 0; i < b; i++) {
            c *= a;
        }
        return c;
    }
}
